Hi!
Two Haibike sduro fullnine 2019 8.0 and 4.0, original chains kmc e10.
On the 8.0, chain wear 0.75% in about 900 Km (ridden by me, mostly eco, std on steep slopes, always used the big cogs)
On the 4.0, chain wear 0.75% in about 500 Km (ridden by my girlfriend, used a lot of assistance...